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Vacuum Valve STL Models for 3D Printing

This collection gathers STL files for vacuum valves used with storage bags, cyclone separators, ducting and small machines. The models range from flat valve discs to multi-part connectors, so you can match a design to the port you already have. Each entry is a starting point for 3D printing rather than a finished part. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

O texto desta coleção está em inglês; a busca funciona em qualquer idioma.

Uma coleção do Polyzon · 48 modelos de 5 sites

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O Polyzon monta esta coleção a partir dos resultados de busca dos sites conectados. Repetições e modelos sem prévia são removidos, correspondências fracas vão para o final e o restante segue a ordem da busca. Os modelos pertencem aos seus autores — confira os termos na página de cada modelo.

Regras de seleção: equipe editorial do Polyzon · Texto atualizado em 13/10/2026

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«Vacuum Valve STL Models for 3D Printing»

The most common group is valves for vacuum bags: flat discs, small check valves and suction rings that let air out and keep it from returning. A second group covers cyclone separators, where the valve sits on the dust container and releases the pressure built up by the airflow. There are also connector valves defined mainly by pipe diameter, and a few special-purpose parts such as anti-vacuum valves for espresso machines.

Before printing, compare the port or bag opening you have with the dimensions the author lists, since a valve that is a few millimetres off will not seal. Look at how many parts the model contains, whether a spring, membrane or ball is used, and whether the author shows the layer height, material and wall count they used. Photos of real prints are more informative than renders, especially for thin sealing lips.

If a search returns little, try the terms used in this field: check valve, non-return valve, one-way valve, or the German Unterdruckventil and the Italian sottovuoto. Adding a diameter such as DN40, DN50 or DN75 narrows the results to a specific port size. Related topics worth browsing include cyclone separators, vacuum bagging, filament storage bags and dust collection fittings.

FAQ

Perguntas frequentes

What kinds of vacuum valve models are collected here?
Most entries are valves for vacuum bags, cyclone separator valves, duct connectors sized by pipe diameter, and a smaller number of special-purpose valves for machines. Each type differs in how it seals and how it mounts.
Which dimensions should I check before printing a valve?
Compare the port or bag opening diameter, the outer diameter of the sealing disc and the height of the part with the measurements on the model page. The wall thickness around the sealing edge also matters for how the part behaves.
Do these valves need extra parts such as springs or seals?
Some designs are printed as a single piece and rely on a flexible lip, while others are made for a spring, ball or O-ring. The model page usually states which additional parts the author used.
How can I find a valve for a cyclone separator?
Search for cyclone valve, dust separator valve or Unterdruckventil alongside the diameter of your container opening. Browsing cyclone separator and dust collection models often leads to matching fittings.
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